[all-commits] [llvm/llvm-project] 4b3746: [ORC] Fix SimpleRemoteEPC data races.

[lhames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4b37462aab4e5f5f1ffdb04294e87b990d189751
      https://github.com/llvm/llvm-project/commit/4b37462aab4e5f5f1ffdb04294e87b990d189751
  Author: Lang Hames <lhames at gmail.com>
  Date:   2021-09-26 (Sun, 26 Sep 2021)

  Changed paths:
    M llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
    M llvm/include/llvm/ExecutionEngine/Orc/SimpleRemoteEPC.h
    M llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h
    M llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp
    M llvm/lib/ExecutionEngine/Orc/SimpleRemoteEPC.cpp

  Log Message:
  -----------
  [ORC] Fix SimpleRemoteEPC data races.

Adds a 'start' method to SimpleRemoteEPCTransport to defer transport startup
until the client has been configured. This avoids races on client members if the
first messages arrives while the client is being configured.

Also fixes races on the file descriptors in FDSimpleRemoteEPCTransport.